[INFO] cloning repository https://github.com/yogan/advent-of-code-2020-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yogan/advent-of-code-2020-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogan%2Fadvent-of-code-2020-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogan%2Fadvent-of-code-2020-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a2994801abc6a463d02b94a196c32bb46117190
[INFO] checking yogan/advent-of-code-2020-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogan%2Fadvent-of-code-2020-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yogan/advent-of-code-2020-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yogan/advent-of-code-2020-rust
[INFO] finished tweaking git repo https://github.com/yogan/advent-of-code-2020-rust
[INFO] tweaked toml for git repo https://github.com/yogan/advent-of-code-2020-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yogan/advent-of-code-2020-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded partial_application v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c07df2d38043f48001ae2ebd72038b068d2c44d8f1217fbb5e158aa1cb4ea588
[INFO] running `Command { std: "docker" "start" "-a" "c07df2d38043f48001ae2ebd72038b068d2c44d8f1217fbb5e158aa1cb4ea588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c07df2d38043f48001ae2ebd72038b068d2c44d8f1217fbb5e158aa1cb4ea588", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c07df2d38043f48001ae2ebd72038b068d2c44d8f1217fbb5e158aa1cb4ea588", kill_on_drop: false }`
[INFO] [stdout] c07df2d38043f48001ae2ebd72038b068d2c44d8f1217fbb5e158aa1cb4ea588
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 877fe0a70e8a050dda8e4a6cf994fdc2ab9fb56fa028b7d75f89a8c71f0d1349
[INFO] running `Command { std: "docker" "start" "-a" "877fe0a70e8a050dda8e4a6cf994fdc2ab9fb56fa028b7d75f89a8c71f0d1349", kill_on_drop: false }`
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking partial_application v0.2.1
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `urlencoding` is imported redundantly
[INFO] [stdout]  --> src/day13.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use urlencoding;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `urlencoding` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `urlencoding` is imported redundantly
[INFO] [stdout]  --> src/day13.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use urlencoding;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `urlencoding` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/day10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                                 ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors", ...);
[INFO] [stdout]    |                                                                  +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("{}", "adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/day10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                                 ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors", ...);
[INFO] [stdout]    |                                                                  +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("{}", "adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.24s
[INFO] running `Command { std: "docker" "inspect" "877fe0a70e8a050dda8e4a6cf994fdc2ab9fb56fa028b7d75f89a8c71f0d1349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877fe0a70e8a050dda8e4a6cf994fdc2ab9fb56fa028b7d75f89a8c71f0d1349", kill_on_drop: false }`
[INFO] [stdout] 877fe0a70e8a050dda8e4a6cf994fdc2ab9fb56fa028b7d75f89a8c71f0d1349
[INFO] checking yogan/advent-of-code-2020-rust against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyogan%2Fadvent-of-code-2020-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yogan/advent-of-code-2020-rust on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yogan/advent-of-code-2020-rust
[INFO] finished tweaking git repo https://github.com/yogan/advent-of-code-2020-rust
[INFO] tweaked toml for git repo https://github.com/yogan/advent-of-code-2020-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yogan/advent-of-code-2020-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6ed78fcf33a322e48660239d87aad425eb08cc9a018f5515d0b9e3896e70242
[INFO] running `Command { std: "docker" "start" "-a" "b6ed78fcf33a322e48660239d87aad425eb08cc9a018f5515d0b9e3896e70242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6ed78fcf33a322e48660239d87aad425eb08cc9a018f5515d0b9e3896e70242", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6ed78fcf33a322e48660239d87aad425eb08cc9a018f5515d0b9e3896e70242", kill_on_drop: false }`
[INFO] [stdout] b6ed78fcf33a322e48660239d87aad425eb08cc9a018f5515d0b9e3896e70242
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bca95949070b0b2b64c95995ef555a80c1d217141549852bb3c0a85bf38c0d79
[INFO] running `Command { std: "docker" "start" "-a" "bca95949070b0b2b64c95995ef555a80c1d217141549852bb3c0a85bf38c0d79", kill_on_drop: false }`
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]     Checking partial_application v0.2.1
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `urlencoding` is imported redundantly
[INFO] [stdout]  --> src/day13.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use urlencoding;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `urlencoding` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `urlencoding` is imported redundantly
[INFO] [stdout]  --> src/day13.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use urlencoding;
[INFO] [stdout]   |     ^^^^^^^^^^^ the item `urlencoding` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/day10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                                 ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors", ...);
[INFO] [stdout]    |                                                                  +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("{}", "adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message contains an unused formatting placeholder
[INFO] [stdout]   --> src/day10.rs:65:33
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                                 ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this message is not used as a format string when given without arguments, but will be in Rust 2021
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add the missing argument
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("adapter {} has more than 3 next adaptors", ...);
[INFO] [stdout]    |                                                                  +++++
[INFO] [stdout] help: or add a "{}" format string to use the message literally
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 panic!("{}", "adapter {} has more than 3 next adaptors");
[INFO] [stdout]    |                        +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "bca95949070b0b2b64c95995ef555a80c1d217141549852bb3c0a85bf38c0d79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bca95949070b0b2b64c95995ef555a80c1d217141549852bb3c0a85bf38c0d79", kill_on_drop: false }`
[INFO] [stdout] bca95949070b0b2b64c95995ef555a80c1d217141549852bb3c0a85bf38c0d79